Please Read My SCP First Before Reading Below:
I was hoping to get another SCP child to be in the same room and my SCP so if you have any good ideas for other child SCPs to meet my SCP please let me know.

Quite fond of geckos, if you're going to give feedback in the forums, please comment on more than just small formatting issues. What did you think of the concept? Is the article interesting enough to you to merit an upvote? Why or why not?

Furthermore, if you're going to mention specifics like run-on sentences, try to provide at least one example of such and then a suggestion for how to fix it. If the author has run-on sentences in what they consider a draft ready to be reviewed, chances are one shouldn't assume that they'd automatically know where run-ons are and how to fix them.

SCP XXXX is a humanoid child it looks the age of around 10 to 12 but can be said to be around for 132 years.

You can split it into two sentences (putting full stop after 'child'). Sentences should focus on being clear.

I was hoping to get another SCP child to be in the same room and my SCP so if you have any good ideas for other child SCPs to meet my SCP please let me know.

Won't that be a containment breach to have multiple SCPs be in the same room? That would be very unpreferrable.

The main weakness with this article is that the SCP's anomaly is very weak or generic. There is almost little distinctive about this, beyond humanoid thing with various odd things piled onto it. To kill people with specific conditions (on its own) is not an anomaly on its own. Anomalies should aim to defy conventional reality. Without clear anomalies, the SCP will not stand on its own ever.